Difference between revisions of "Geophone"

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(VM 7.23.20)
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{{Virtual Museum table
 
{{Virtual Museum table
|Taxonomy=IMG2183
+
|Taxonomy=IMG2173
 
|Item=Geophone
 
|Item=Geophone
|Serial number=NMI-32
+
|Serial number=NMI-22
 +
|Manufacturer=Electro-Tech Labs
 
|Donor=Charlie Klutts
 
|Donor=Charlie Klutts
 
|Location=HGC
 
|Location=HGC
 
}}
 
}}
#32. NMI. '"Donut" housing measures 18" across and center assembly holds two geophones.Number 3 stamped in several places on geophone housing and outer ring. No other markings.
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#22. Cap is stamped with ELECTRO TECH logo, script letters within an oval. 383817 32 W8 is stamped around the side of the case. Flat base unscrews to provide a threaded stud for spike or other coupling attachment.
  
[[File:GSH_ IMG2183.jpg|300px]]
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[[File:GSH_ IMG2173.jpg|300px]]

Revision as of 10:41, 23 July 2020

Item Geophone
Item code
Description
Manufacturer Electro-Tech Labs
Circa
Model
Donor Charlie Klutts
Location HGC
Serial number NMI-22"NMI" can not be assigned to a declared number type with value -22.
Taxonomy IMG2173
  1. 22. Cap is stamped with ELECTRO TECH logo, script letters within an oval. 383817 32 W8 is stamped around the side of the case. Flat base unscrews to provide a threaded stud for spike or other coupling attachment.

GSH IMG2173.jpg